The 10/12/15 problem is easily solved.
Who's the in-form 10? It's JOC (James O'Connor). He's 2-0 vs Lolesio, 2-0 vs To'omua, and in both cases, beyond the scoreboard, he was more influential than his counterpart, producing some great plays ball in hands and off his boot.
Who's the in-form 12? Who else but...